Song keys:
CL=C left, CR = C right, CD = C down, CU = C up, A=A
(A,CD,CU,A,CD,CU) Causes it to rain. Allows you to enter the bottom of the well as young Link. Also used to open secret holes and summon secret Big Faeries. Talk to the weird guy inside the windmill in Kakariko Village as adult Link and then show him your Ocarina (equip Ocarina and push the Ocarina button when near him).